<template>
  <div :class="['modal', { fade: fade }]" data-keyboard="true" data-backdrop="static" tabindex="-1">
    <div class="modal-dialog modal-lg">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal" aria-label="Close">
            <span aria-hidden="true">&times;</span>
          </button>
          <h4 class="modal-title text-primary text-center"><span>{{ videoTitle }}</span></h4>
        </div>
        <div class="modal-body">
          <div class="row" v-if="ptz">
            <div
                :class="['form-group', 'play-area', { 'user-active': active, 'col-sm-8': hasAnyRole(serverInfo, userInfo, '管理员', '操作员'), 'col-sm-12': !hasAnyRole(serverInfo, userInfo, '管理员', '操作员')}]"
                @mousemove="doActive">
              <LivePlayer ref="player" v-if="bShow" :videoUrl="videoUrl" :poster="poster" :live="live" muted
                          :hideBigPlayButton="!!serverInfo.HideBigPlayButton"
                          @message="$message" :loading.sync="bLoading" v-loading="bLoading" element-loading-text="加载中">
                <div class="player-demo-text" v-if="isDemoUser(serverInfo, userInfo)">
                  提示: 演示系统限制匿名登录播放时间, 若需测试长时间播放, 请<a target="_blank"
                                                     href="//www.liveqing.com/docs/download/LiveGBS.html">下载使用</a>
                </div>
              </LivePlayer>
            </div>
            <div :class="['col-sm-4', 'form-group']" v-if="hasAnyRole(serverInfo, userInfo, '管理员', '操作员')">
              <div class="form-group hide">
                <div class="input-group">
                  <input type="text" v-model.trim="osd" class="form-control">
                  <span class="input-group-btn">
                                        <button class="btn btn-default" type="button"
                                                @click.prevent="setOSD">设置OSD</button>
                                    </span>
                </div>
              </div>
              <div class="form-group">
                <div class="ptz-block">
                  <el-progress class="mic-level-bar" :percentage="level" :text-inside="true" v-if="ws"></el-progress>
                  <div class="ptz-cell ptz-up" command="up" title="上" @mousedown.prevent="ptzControl('up', $event)"
                       @touchstart.prevent="ptzControl('up', $event)">
                    <i class="fa fa-chevron-up"></i>
                  </div>
                  <div class="ptz-cell ptz-left" command="left" title="左"
                       @mousedown.prevent="ptzControl('left', $event)" @touchstart.prevent="ptzControl('left', $event)">
                    <i class="fa fa-chevron-left"></i>
                  </div>
                  <div class="ptz-cell ptz-center" title="云台控制">
                    <i class="fa fa-microphone" title="按住喊话" @mousedown.prevent="talkStart"
                       @touchstart.prevent="talkStart" v-if="canTalk() && serverInfo.VersionType != '标准版'"></i>
                    <i class="fa fa-microphone-slash" title="由于浏览器安全策略, 非 HTTPS 或 localhost 访问, 对讲不可用"
                       v-if="!canTalk() && serverInfo.VersionType != '标准版'"></i>
                  </div>
                  <div class="ptz-cell ptz-right" command="right" title="右"
                       @mousedown.prevent="ptzControl('right', $event)"
                       @touchstart.prevent="ptzControl('right', $event)">
                    <i class="fa fa-chevron-right"></i>
                  </div>
                  <div class="ptz-cell ptz-down" command="down" title="下"
                       @mousedown.prevent="ptzControl('down', $event)" @touchstart.prevent="ptzControl('down', $event)">
                    <i class="fa fa-chevron-down"></i>
                  </div>
                  <div class="ptz-cell ptz-zoomin" command="zoomin" title="放大"
                       @mousedown.prevent="ptzControl('zoomin', $event)"
                       @touchstart.prevent="ptzControl('zoomin', $event)">
                    <i class="fa fa-plus"></i>
                  </div>
                  <div class="ptz-cell ptz-zoomout" command="zoomout" title="缩小"
                       @mousedown.prevent="ptzControl('zoomout', $event)"
                       @touchstart.prevent="ptzControl('zoomout', $event)">
                    <i class="fa fa-minus"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div v-else :class="['row', 'play-area', { 'user-active': active }]" @mousemove="doActive">
            <LivePlayer ref="player" v-if="bShow" :videoUrl="videoUrl" :poster="poster" :live="live" muted
                        :hideBigPlayButton="!!serverInfo.HideBigPlayButton"
                        @message="$message" :loading.sync="bLoading" v-loading="bLoading" element-loading-text="加载中">
              <div class="player-demo-text" v-if="isDemoUser(serverInfo, userInfo)">
                提示: 演示系统限制匿名登录播放时间, 若需测试长时间播放, 请<a target="_blank" href="//www.liveqing.com/docs/download/LiveGBS.html">下载使用</a>
              </div>
            </LivePlayer>
          </div>
        </div>
        <div class="modal-footer">
          <el-radio-group v-model.trim="protocol" size="small" @change="setProtocol" id="protocol-switcher"
                          class="hidden-xs pull-left">
            <el-radio-button label="FLV" v-if="flvSupported() && !isIE()"></el-radio-button>
            <el-radio-button label="WS_FLV" v-if="flvSupported()"></el-radio-button>
            <el-radio-button label="WEBRTC" v-if="rtcSupported()"></el-radio-button>
            <el-radio-button label="HLS"></el-radio-button>
            <el-radio-button label="RTMP"></el-radio-button>
          </el-radio-group>
          <button v-if="hasAnyRole(serverInfo, userInfo, '管理员', '操作员') && serverInfo.VersionType != '标准版'" type="button"
                  :class="['btn', {'btn-primary': !bRecording, 'btn-danger': bRecording}]"
                  @click.prevent="toggleRecord()">
            <i :class="['fa', {'fa-save': !bRecording, 'fa-stop': bRecording}]"></i>
            {{ bRecording ? '停止录像' : '实时录像' }}
          </button>
          <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import "jquery-ui/ui/widgets/draggable";
import LivePlayer from "@liveqing/liveplayer";
import {mapState} from "vuex";

export default {
  data() {
    return {
      videoUrl: "",
      videoTitle: "",
      snapUrl: "",
      serial: "",
      code: "",
      timer: 0,
      active: false, // show demo tips
      osd: "",
      streamid: "",
      protocol: "",
      streamInfo: null,
      bRecording: false,
      bShow: false,
      bLoading: false,
      recorder: null,
      ws: null,
      level: 0,
    };
  },
  props: {
    live: {
      type: Boolean,
      default: false
    },
    fade: {
      type: Boolean,
      default: false
    },
    ptz: {
      type: Boolean,
      default: false
    }
  },
  computed: {
    ...mapState(['userInfo', 'serverInfo']),
    poster() {
      if (this.protocol == "RTMP") {
        return "";
      }
      return this.snapUrl;
    }
  },
  beforeDestroy() {
    if (this.timer) {
      clearTimeout(this.timer);
      this.timer = 0;
    }
    if (this.ws) {
      this.ws.close();
      this.ws = null;
    }
    this.ctrlStop();
    $(document).off("mouseup touchend", this.ctrlStop);
  },
  mounted() {
    $(this.$el)
        .find(".modal-content")
        .draggable({
          handle: ".modal-header",
          cancel: ".modal-title span",
          addClasses: false,
          containment: "document",
          delay: 100,
          opacity: 0.5
        });
    $(this.$el)
        .on("hide.bs.modal", () => {
          this.bShow = false;
          this.streamInfo = null;
          this.protocol = "";
          this.snapUrl = "";
          this.videoUrl = "";
          if (this.timer) {
            clearTimeout(this.timer);
            this.timer = 0;
          }
        })
        .on("show.bs.modal", () => {
          this.bShow = true;
        });
    $(document).on("mouseup touchend", this.ctrlStop);
  },
  components: {LivePlayer},
  methods: {
    play(title, serial, code, streamInfo) {
      streamInfo = streamInfo || {};
      var videoUrl = this.isMobile() ? streamInfo.HLS : streamInfo.RTMP;
      var protocol = this.isMobile() ? "HLS" : "RTMP";
      if (this.flvSupported()) {
        videoUrl = this.isIE() ? streamInfo.WS_FLV : streamInfo.FLV;
        protocol = this.isIE() ? "WS_FLV" : "FLV";
      }
      switch (String(this.serverInfo.PreferStreamFmt).toUpperCase()) {
        case "WEBRTC":
          if (this.rtcSupported()) {
            videoUrl = streamInfo.WEBRTC;
            protocol = "WEBRTC";
          }
          break;
        case "FLV":
          if (this.flvSupported() && !this.isIE()) {
            videoUrl = streamInfo.FLV;
            protocol = "FLV";
          }
          break;
        case "WS_FLV":
        case "WS-FLV":
          if (this.flvSupported()) {
            videoUrl = streamInfo.WS_FLV;
            protocol = "WS_FLV";
          }
          break;
        case "HLS":
          videoUrl = streamInfo.HLS;
          protocol = "HLS";
          break;
        case "RTMP":
          videoUrl = streamInfo.RTMP;
          protocol = "RTMP";
          break;
      }
      this.protocol = protocol;
      this.videoTitle = title || "";
      this.snapUrl = protocol == "RTMP" ? "" : (streamInfo.SnapURL || "");
      this.serial = serial || "";
      this.code = code || "";
      this.streamid = streamInfo.StreamID || "";
      this.bRecording = streamInfo.RecordStartAt != ""
      this.streamInfo = streamInfo;

      this.$nextTick(() => {
        this.videoUrl = videoUrl || "";
        this.doActive();
      })
      $(this.$el).modal("show");
    },
    setProtocol(protocol) {
      if (!this.streamInfo) return;
      switch (protocol) {
        case "WEBRTC":
          this.videoUrl = this.streamInfo.WEBRTC;
          break;
        case "FLV":
          this.videoUrl = this.streamInfo.FLV;
          break;
        case "WS_FLV":
          this.videoUrl = this.streamInfo.WS_FLV;
          break;
        case "RTMP":
          this.snapUrl = "";
          this.videoUrl = this.streamInfo.RTMP;
          break;
        case "HLS":
          this.videoUrl = this.streamInfo.HLS;
          break;
      }
      this.doActive();
    },
    ptzControl(cmd, event) {
      // $.get("/api/v1/control/ptz", {
      //   serial: this.serial,
      //   code: this.code,
      //   command: cmd,
      // });
      $.ajax({
        method: "GET", // type: "GET", is also ok, method since jquery 1.9
        url: this.$baseUrl.http + "/api/v1/control/ptz",
        global: false,
        data: {
          serial: this.serial,
          code: this.code,
          command: cmd,
        }
      }).fail(xhr => {
        xhr && console.log(`ptz ${cmd} ajax error: ${xhr.status} ${xhr.responseText}`);
      })
      $(event.target).closest('.ptz-cell').addClass("active");
    },
    ptzStop() {
      if ($(this.$el).find(".ptz-cell.active").length > 0) {
        // $.get("/api/v1/control/ptz", {
        //   serial: this.serial,
        //   code: this.code,
        //   command: "stop"
        // });
        $.ajax({
          method: "GET", // type: "GET", is also ok, method since jquery 1.9
          url: this.$baseUrl.http + "/api/v1/control/ptz",
          global: false,
          data: {
            serial: this.serial,
            code: this.code,
            command: "stop",
          }
        }).fail(xhr => {
          xhr && console.log(`ptz stop ajax error: ${xhr.status} ${xhr.responseText}`);
        })
        $(this.$el).find(".ptz-cell.active").removeClass("active");
      }
    },
    talkStart(e) {
      if (!this.ws) {
        this.ws = new WebSocket(this.wsTalkURL());
        this.ws.onopen = evt => {
          console.log("ws talk open");
        }
        this.ws.onclose = evt => {
          console.log("ws talk close");
        }
        this.ws.onerror = evt => {
          console.log("ws talk error", evt);
        }
      }
      var $target = $(e.currentTarget);
      if (this.recorder) {
        $target.addClass("active");
        this.recorder.start();
        return;
      }
      LiveRecorder.get((rec, err) => {
        if (err) {
          alert(err);
          this.talkStop();
          return
        }
        // this.$refs["player"].setMuted(true);
        $target.addClass("active");
        this.recorder = rec;
        this.recorder.start();
      }, {
        sampleBits: 16,
        sampleRate: 8000,
        pcmCallback: (pcm, level) => {
          // binary to base64 string
          var reader = new window.FileReader();
          reader.onloadend = () => {
            var base64 = reader.result;
            var base64 = base64.split(',')[1];
            if (this.ws && this.ws.readyState === WebSocket.OPEN) {
              this.ws.send(base64);
              this.level = level;
            }
          }
          reader.readAsDataURL(pcm);
        }
      })
    },
    talkStop() {
      if (this.recorder) {
        this.recorder.stop();
        // this.recorder = null;
        $(this.$el).find(".fa-microphone.active").removeClass("active");
        // this.$refs["player"].setMuted(false);
      }
      if (this.ws) {
        this.ws.close();
        this.ws = null;
      }
      this.level = 0;
    },
    ctrlStop() {
      this.talkStop();
      this.ptzStop();
    },
    toggleRecord() {
      if (this.bRecording) {
        $.get(this.$baseUrl.http + "/api/v1/record/stop", {
          streamid: this.streamid
        }).then(ret => {
          for (var record of ret.RecordList) {
            window.open(record.DownloadURL, "_blank");
          }
          this.bRecording = false;
        })
      } else {
        $.get(this.$baseUrl.http + "/api/v1/record/start", {
          streamid: this.streamid
        }).then(() => {
          this.bRecording = true;
        })
      }
    },
    wsTalkURL() {
      var protocal = "ws:";
      if (location.protocol.startsWith("https")) {
        protocal = "wss:";
      }
      //url query param "format=pcm|g711"
      return `${protocal}//${this.$baseUrl.ip}/api/v1/control/ws-talk/${this.serial}/${this.code}?format=pcm`;
    },
    doActive() {
      this.active = true;
      if (this.timer) {
        clearTimeout(this.timer);
        this.timer = 0;
      }
      this.timer = setTimeout(() => {
        this.active = false;
      }, 2000);
    },
  }
};
</script>

<style lang="less" scoped>
.play-area {
  .player-demo-text {
    position: absolute;
    left: 0;
    right: 0;
    width: 100%;
    bottom: 3em;
    color: #FFF;
    background-color: rgba(43, 51, 63, .7);
    text-align: center;
    padding: 10px;
    visibility: visible;
    opacity: 0;
    transition: visibility 1s, opacity 1s;
  }

  &.user-active {
    .player-demo-text {
      visibility: visible;
      opacity: 1;
      transition: visibility .1s, opacity .1s;
    }
  }
}
</style>

<style lang="css" scoped>
/* IE9, IE10, IE11 */
@media screen and (min-width: 0\0
) {
  .play-area .player-demo-text {
    bottom: 30px !important;
  }
}
</style>

<style lang="less" scoped>
.modal-title {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.ptz-block {
  width: 150px;
  height: 180px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  font-size: 24px;
  color: #333;

  .ptz-cell {
    width: 50px;
    height: 50px;
    line-height: 50px;
    position: absolute;
    cursor: pointer;
  }

  .ptz-cell.active {
    color: #ccc;
    // font-size: 26px;
  }

  .fa-microphone.active {
    color: #FFF;
  }

  .mic-level-bar {
    position: absolute;
    transform: rotate(-90deg);
    width: 100%;
    top: 70px;
    left: -80px;
  }

  .ptz-center {
    top: 50px;
    left: 50px;
    border-radius: 25px;
    background-color: #ccc;
  }

  .ptz-up {
    top: 0;
    left: 50px;
  }

  .ptz-left {
    top: 50px;
    left: 0;
  }

  .ptz-right {
    top: 50px;
    left: 100px;
  }

  .ptz-down {
    top: 100px;
    left: 50px;
  }

  .ptz-zoomin {
    top: 150px;
    left: 20px;
  }

  .ptz-zoomout {
    top: 150px;
    left: 80px;
  }
}

#protocol-switcher {
  label {
    margin-bottom: 0;
  }
}
</style>






